I would like to get some hints on the error message that I receive when I try to generate the grid for my structural solver which I will use in my FSI solver:

terminate called after throwing an instance of 'dealii::StandardExceptions::ExcIO'
what(): --------------------------------------------------------
An error occurred in line <287> of file <source/grid/grid_out.cc> in function
void dealii::GridOut::write_msh(const dealii::Triangulation<dim>&, std:stream&) const [with int dim = 3]
The violated condition was:
out
The name and call sequence of the exception was:
ExcIO()
Additional Information:
(none)
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